Cutting mechanism

Abstract

The utility model provides a cutting mechanism which comprises a pair of assembly plate seats, a heating wire winding disc frame is arranged at the bottom of one of the assembly plate seats, the bottom of the heating wire winding disc frame is rotationally connected with a heating wire winding disc through a first rotating shaft, and a heating wire is wound on the heating wire winding disc. A heating wire fixing rod frame is arranged at the bottom of the other assembly plate base, and one end of the heating wire is fixed to the bottom of the heating wire fixing rod frame. The distance between the two assembly plate seats is adjusted, the heating wire winding disc can achieve winding and unwinding of the heating wire, the length of the heating wire can be adjusted according to the actual cutting size needed by a PE film, and after the length of the heating wire is adjusted, the heating wire can be wound and unwound by controlling a telescopic rod of the first electromagnetic telescopic piece to stretch. And until the first limiting nylon ejector block abuts against the outer wall of the heating wire winding disc, limiting of the heating wire winding disc is completed, and the situation that the heating wire winding disc rotates, and consequently the heating wire is loosened is prevented.

Description

Technical Field

[0001] This utility model relates to the field of PE film processing equipment technology, and in particular to a cutting mechanism. Background Technology

[0002] Polyethylene (PE) film is widely used in packaging, agricultural coverings, and other fields due to its excellent flexibility and processability. In film slitting processes, electric heating wire cutting technology, with its clean cuts and integrated edge sealing, is gradually becoming one of the mainstream solutions to replace traditional mechanical cutting. However, existing electric heating wire cutting devices face significant technical obstacles in terms of the flexibility of cutting length adjustment, severely restricting its application expansion. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a cutting mechanism to more accurately resolve the problems described above.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model proposes a cutting mechanism, including a pair of mounting plates. One of the mounting plates has a heating wire winding reel frame at its bottom, and a heating wire winding reel is rotatably connected to the bottom of the heating wire winding reel frame via a first rotating shaft. A heating wire is wound on the heating wire winding reel. The other mounting plate has a heating wire fixing rod frame at its bottom, and one end of the heating wire is fixed to the bottom of the heating wire fixing rod frame. A spring cavity is provided on one side of the heating wire winding reel, and a first spring is provided in the spring cavity. The two ends of the first spring are respectively connected to the first rotating shaft and the spring cavity. The cavity wall includes one of the assembly plate seats, both sides of which are connected to a pressure strip take-up reel frame via elastic telescopic rods. The pressure strip take-up reel frame is rotatably connected to a pressure strip take-up reel via a second rotating shaft. Pressure strip is wound on the pressure strip take-up reel. The other assembly plate seat has pressure strip fixing rods on both sides of its bottom, and the end of the pressure strip is fixed to the bottom of the pressure strip fixing rod on the same side. One side of the pressure strip take-up reel has a spring cavity, and a second spring is provided in the spring cavity. The two ends of the second spring are respectively connected to the second rotating shaft and the spring cavity wall.

[0006] Furthermore, the upper part of the heating wire winding reel is provided with a first electromagnetic telescopic member, the telescopic rod of the first electromagnetic telescopic member extends vertically downward, and the lower end of the telescopic rod of the first electromagnetic telescopic member is provided with a first limiting nylon top block.

[0007] Furthermore, the bottom of the first limiting nylon top block is an arc-shaped concave surface that matches the shape and size of the outer wall of the heating wire winding reel, and the arc-shaped concave surface at the bottom of the first limiting nylon top block is provided with anti-slip friction texture.

[0008] Furthermore, a support frame is integrally formed on one side of the pressure tape take-up reel frame, and a second electromagnetic telescopic component is fixed on the support frame. The telescopic rod of the second electromagnetic telescopic component extends in the direction of extension and retraction towards the side of the pressure tape take-up reel, and a second limiting nylon top block is provided at the end of the telescopic rod of the second electromagnetic telescopic component.

[0009] Furthermore, the end of the second limiting nylon top block near the pressure tape take-up reel is an arc-shaped concave surface that matches the shape and size of the outer wall of the pressure tape take-up reel, and the arc-shaped concave surface at the bottom of the second limiting nylon top block is provided with anti-slip friction texture.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model allows the heating wire take-up reel to take up and prevent the heating wire from moving by adjusting the distance between the two assembly plate seats. The length of the heating wire can be adjusted according to the actual cutting size required for the PE film. After adjusting the length of the heating wire, the telescopic rod of the first electromagnetic telescopic component is extended until the first limiting nylon top block abuts against the outer wall of the heating wire take-up reel, thereby limiting the heating wire take-up reel and preventing the heating wire take-up reel from rotating and causing the heating wire to loosen.

[0012] 2. In the process of adjusting the length of the heating wire, the pressure strip take-up reel can take up the pressure strip. When the heating wire presses down to cut the PE film, the pressure strip can press against both sides of the PE film cutting position in advance. As the heating wire continues to press down, the elastic telescopic rod is compressed, effectively preventing the PE film from loosening or shifting during the cutting process. After adjusting the length of the pressure strip, the telescopic rod of the second electromagnetic telescopic component is extended until the second limiting nylon top block abuts against the outer wall of the pressure strip take-up reel, thereby completing the limiting of the pressure strip take-up reel and preventing the pressure strip from loosening due to the rotation of the pressure strip take-up reel. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a front view of the structure of this utility model;

[0016] Figure 4 for Figure 3 Sectional view at point BB.

[0017] In the diagram: 1. Assembly plate base; 101. Heating wire take-up reel frame; 1011. Heating wire fixing rod frame; 102. Elastic telescopic rod; 103. Pressure belt take-up reel frame; 1031. Pressure belt fixing rod frame; 1032. Support frame; 2. Heating wire take-up reel; 201. First rotating shaft; 202. Heating wire; 203. First spring; 204. First electromagnetic telescopic component; 2041. First limiting nylon top block; 3. Pressure belt take-up reel; 301. Second rotating shaft; 302. Pressure belt; 303. Second spring; 304. Second electromagnetic telescopic component; 305. Second limiting nylon top block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0019] A cutting mechanism includes a pair of mounting plate seats 1, the mounting plate seats 1 being used to connect a lifting device, combined with Figure 1 and Figure 4 As shown, one of the mounting plate seats 1 has a heating wire take-up reel frame 101 at its bottom. The bottom of the heating wire take-up reel frame 101 is rotatably connected to a heating wire take-up reel 2 via a first rotating shaft 201. A heating wire 202 is wound on the heating wire take-up reel 2. The bottom of the other mounting plate seat 1 has a heating wire fixing rod frame 1011, and one end of the heating wire 202 is fixed to the bottom of the heating wire fixing rod frame 1011. One side of the heating wire take-up reel 2 has a spring cavity, and a first spring 203 is provided in the spring cavity. The two ends of the first spring 203 are respectively connected to the first rotating shaft 201 and the wall of the spring cavity. By adjusting the distance between the two mounting plate seats 1, the heating wire take-up reel 2 can realize the take-up and take-up of the heating wire 202. The length of the heating wire 202 can be adjusted according to the actual cutting size required for the PE film.

[0020] like Figure 4As shown, the upper part of the heating wire take-up reel frame 101 is provided with a first electromagnetic telescopic component 204. The telescopic rod of the first electromagnetic telescopic component 204 extends vertically downward, and the lower end of the telescopic rod of the first electromagnetic telescopic component 204 is provided with a first limiting nylon top block 2041. The bottom of the first limiting nylon top block 2041 is an arc-shaped concave surface that matches the shape and size of the outer wall of the heating wire take-up reel 2. After adjusting the length of the heating wire 202, the telescopic rod of the first electromagnetic telescopic component 204 is extended until the first limiting nylon top block 2041 abuts against the outer wall of the heating wire take-up reel 2, thereby completing the limiting of the heating wire take-up reel 2 and preventing the heating wire take-up reel 2 from rotating and causing the heating wire 202 to loosen. The arc-shaped concave surface at the bottom of the first limiting nylon top block 2041 is provided with anti-slip friction texture to ensure the limiting effect.

[0021] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: By adjusting the distance between the two assembly plate seats 1, the heating wire take-up reel 2 can realize the take-up and protection of the heating wire 202. The length of the heating wire 202 can be adjusted according to the actual required cutting size of the PE film. After adjusting the length of the heating wire 202, the extension rod of the first electromagnetic telescopic member 204 is controlled to extend until the first limiting nylon top block 2041 abuts against the outer wall of the heating wire take-up reel 2, thereby completing the limiting of the heating wire take-up reel 2 and preventing the heating wire take-up reel 2 from rotating and causing the heating wire 202 to loosen. Example 2

[0022] One of the mounting plate bases 1 has a pressure strip take-up reel frame 103 connected to both sides of its bottom via elastic telescopic rods 102. The pressure strip take-up reel frame 103 is rotatably connected to the pressure strip take-up reel 3 via a second rotating shaft 301. The pressure strip 302 is wound on the pressure strip take-up reel 3. The other mounting plate base 1 has a pressure strip fixing rod frame 1031 on both sides of its bottom. The end of the pressure strip 302 is fixed to the bottom of the pressure strip fixing rod frame 1031 on the same side. The pressure strip take-up reel 3 has a spring cavity on one side. The spring cavity contains a second spring 303. The two ends of the second spring 303 are respectively connected to the second rotating shaft 301 and the spring cavity wall. During the process of adjusting the length of the heating wire 202, the pressure strip take-up reel 3 can take up the pressure strip 302. When the heating wire 202 presses down to cut the PE film, the pressure strip 302 can press against both sides of the PE film cutting position in advance. As the heating wire 202 continues to press down, the elastic telescopic rod 102 is compressed, effectively preventing the PE film from loosening or shifting during the cutting process.

[0023] like Figure 2As shown, a support frame 1032 is integrally formed on one side of the pressure tape take-up reel frame 103. A second electromagnetic telescopic component 304 is fixed on the support frame 1032. The telescopic rod of the second electromagnetic telescopic component 304 extends in the direction of extension and retraction towards the side of the pressure tape take-up reel 3. A second limiting nylon top block 305 is provided at the end of the telescopic rod of the second electromagnetic telescopic component 304. The end of the second limiting nylon top block 305 near the pressure tape take-up reel 3 is an arc-shaped concave surface that matches the shape and size of the outer wall of the pressure tape take-up reel 3. After adjusting the length of the pressure tape 302, the telescopic rod of the second electromagnetic telescopic component 304 is extended until the second limiting nylon top block 305 abuts against the outer wall of the pressure tape take-up reel 3, thereby limiting the pressure tape take-up reel 3 and preventing the pressure tape 302 from loosening due to rotation of the pressure tape take-up reel 3. The arc-shaped concave surface at the bottom of the second limiting nylon top block 305 is provided with anti-slip friction texture to ensure the limiting effect.

[0024] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: During the process of adjusting the length of the heating wire 202, the pressure strip take-up reel 3 can take up the pressure strip 302. When the heating wire 202 presses down to cut the PE film, the pressure strip 302 can press against both sides of the PE film cutting position in advance. As the heating wire 202 continues to press down, the elastic telescopic rod 102 is compressed, effectively preventing the PE film from loosening and shifting during the cutting process. After adjusting the length of the pressure strip 302, the telescopic rod of the second electromagnetic telescopic member 304 is extended until the second limiting nylon top block 305 abuts against the outer wall of the pressure strip take-up reel 3, thereby completing the limiting of the pressure strip take-up reel 3 and preventing the pressure strip take-up reel 3 from rotating and causing the pressure strip 302 to loosen.

[0025] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A cutting mechanism comprising a pair of mounting plate seats (1), characterized in that, One of the assembly plate seat (1) bottom is equipped with heating wire winding disc rack (101), heating wire winding disc rack (101) bottom is rotatably connected with heating wire winding disc (2) through first rotating shaft (201), heating wire winding disc (2) is wound with heating wire (202), the bottom of the other assembly plate seat (1) is equipped with heating wire fixed rod frame (1011), and one end of the heating wire (202) is fixed with the heating wire fixed rod frame (1011) bottom, one side of the heating wire winding disc (2) is equipped with clock spring inner cavity, the first clock spring (203) is arranged in the clock spring inner cavity, and the first clock spring (203) is connected with the first rotating shaft (201) and the clock spring inner cavity wall respectively, the bottom of one of the assembly plate seat (1) is rotatably connected with the pressure belt winding disc rack (103) through the elastic telescopic rod (102) on both sides, the pressure belt winding disc rack (103) is rotatably connected with the pressure belt winding disc (3) through the second rotating shaft (301), the pressure belt winding disc (3) is wound with the pressure belt (302), the bottom of the other assembly plate seat (1) is equipped with pressure belt fixed rod frame (1031) on both sides, and the end of the pressure belt (302) is fixed with the bottom of the same side pressure belt fixed rod frame (1031), one side of the pressure belt winding disc (3) is equipped with clock spring inner cavity, the second clock spring (303) is arranged in the clock spring inner cavity, and the two ends of the second clock spring (303) are connected with the second rotating shaft (301) and the clock spring inner cavity wall respectively.

2. A cutting mechanism according to claim 1, wherein, The upper portion of the heating wire winding disc rack (101) is provided with a first electromagnetic telescopic member (204), and the telescopic rod of the first electromagnetic telescopic member (204) extends vertically downward, and the lower end of the telescopic rod of the first electromagnetic telescopic member (204) is provided with a first limiting nylon top block (2041).

3. A cutting mechanism according to claim 2, wherein, The bottom of the first limiting nylon top block (2041) is an arc-shaped concave surface matched with the shape and size of the outer wall of the heating wire winding disc (2), and the arc-shaped concave surface of the bottom of the first limiting nylon top block (2041) is provided with anti-skid friction lines.

4. The cutting mechanism of claim 1, wherein, The side of the pressure belt winding disc rack (103) is integrally formed with a support frame (1032), the second electromagnetic telescopic member (304) is fixed on the support frame (1032), the telescopic rod of the second electromagnetic telescopic member (304) extends in the direction of the side of the pressure belt winding disc (3), and the end of the telescopic rod of the second electromagnetic telescopic member (304) is provided with a second limiting nylon top block (305).

5. A cutting mechanism according to claim 4, wherein, The end of the second limiting nylon top block (305) close to the pressure belt winding disc (3) is an arc-shaped concave surface matched with the shape and size of the outer wall of the pressure belt winding disc (3), and the arc-shaped concave surface of the bottom of the second limiting nylon top block (305) is provided with anti-skid friction lines.

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